Home / 15,962.85-22,021.11-12,401.69

Finding the Fourth Proportional to 15,962.85, 22,021.11 and 12,401.69

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Solution

The fourth proportional to 15,962.85, 22,021.11 and 12,401.69 is: 17,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,962.85 : 22,021.11 = 12,401.69 : x
  2. Step 2: Convert to fraction form
    15,962.85/22,021.11 = 12,401.69/x
  3. Step 3: Cross multiply
    15,962.85x = 22,021.11 × 12,401.69
  4. Step 4: Simplify right side
    15,962.85x = 273,098,869.57
  5. Step 5: Solve for x
    x = 273,098,869.57/15,962.85
  6. Step 6: Final answer
    x = 17,108.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.